What is N/A?
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Joined: Oct 2006
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From: Wichita, Ks.
What is N/A? I'm asking this on this site because there are alot of knowledgeable people that post here. An old school Mustang bag of bolts relic friend of mine believes that anything fuel injection can't be normally aspirated. I believe that N/A can be carbed or fuel injected, just not nitrous or blown. Who is right? can someone settle this diagreement so he can get on with his life! lol
Originally Posted by ss dave
I'm asking this on this site because there are alot of knowledgeable people that post here. An old school Mustang bag of bolts relic friend of mine believes that anything fuel injection can't be normally aspirated. I believe that N/A can be carbed or fuel injected, just not nitrous or blown. Who is right? can someone settle this diagreement so he can get on with his life! lol
Lets break down the words.
Natuarally -
In a natural manner.
Aspirated, Aspiration -
Coming from medical terms
-To remove an abnormal accumulation of (a liquid or gas) from the body by aspiration.
-To suction (a body part or growth, for example) for the removal of a liquid or a gas.
-To draw (something) into the lungs; inhale.
My take -
Natural aspiration would mean the engine gets its oxygen by the natural inhalation of air/fuel caused by the difference in pressure inside the cylinder as the piston moves down relative to the ambient and not by force (supercharged, turbocharged) or chemically (nitrous).
Whether the fuel goes through a carburetor venturi or a fuel injector is irrelevant. Tell your friend that you are right.
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Originally Posted by junior28570
lol .. all you can do with someone like that is laugh. I'm betting this chap would argue with a fence post ... too funny!
ha what really gets people like that going is if you say "no, your wrong" to every point they make. don't follow it up with any facts or knowledge, just look at him and say.... you sir, are wrong.
Originally Posted by ss dave
I'm asking this on this site because there are alot of knowledgeable people that post here. An old school Mustang bag of bolts relic friend of mine believes that anything fuel injection can't be normally aspirated. I believe that N/A can be carbed or fuel injected, just not nitrous or blown. Who is right? can someone settle this diagreement so he can get on with his life! lol
N/A = Naturally Asipirated = breathes on its own with no ventilator(aka, blower, turbo, nitrous)
As good an analogy to medical i could think of.
Wow, he is real old school. At one time, he would have been right because only a carburetor-equipped vehicle was considered normally aspirated. But that was at least 25 years ago when EFI was just starting to become more common from the factories as standard production. At the time most major car magazines would actually make a big deal of a production EFI system and was considered exotic. A perfect example of this was the GM TPI system. Evntually as more and more vehicles were equipped with EFI it was considered N/A because carbs were phased out of production.
At one time, he would have been right because only a carburetor-equipped vehicle was considered normally aspirated. But that was at least 25 years ago when EFI was just starting to become more common from the factories as standard production. At the time most major car magazines would actually make a big deal of a production EFI system and was considered exotic. A perfect example of this was the GM TPI system. Evntually as more and more vehicles were equipped with EFI it was considered N/A because carbs were phased out of production. 
Aspirated being the key word here, by very definition we are talking about how the engine breathes, which it does under its own power without "forced induction", or higher than normal pressure shoved down its throat.
It doesn't matter if it gets its fuel from a carburetor or a fuel injector, that has nothing to do with "aspiration".
For what its worth, you can run a carb with EFI...
It doesn't matter if it gets its fuel from a carburetor or a fuel injector, that has nothing to do with "aspiration".
For what its worth, you can run a carb with EFI...
Naturally Aspirated Defined
Naturally: nat·u·ral·ly
Pronunciation: 'na-ch&r-&-lE, 'nach-r&-, 'na-ch&r-
Function: adverb
: without artificial aid
Aspirated: as·pi·rat-ed
Pronunciation: 'as-p&-"rAt-d
Function: transitive verb
: to draw by suction
<: a drawing of something in, out, up, or through by or as if by suction:>
Naturally: nat·u·ral·ly
Pronunciation: 'na-ch&r-&-lE, 'nach-r&-, 'na-ch&r-
Function: adverb
: without artificial aid
Aspirated: as·pi·rat-ed
Pronunciation: 'as-p&-"rAt-d
Function: transitive verb
: to draw by suction
<: a drawing of something in, out, up, or through by or as if by suction:>